<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<style>
    .login-header {
        width: 100%;
        text-align: center;
        height: 30px;
        font-size: 24px;
        line-height: 30px;
    }
    
    ul,
    li,
    ol,
    dl,
    dt,
    dd,
    div,
    p,
    span,
    h1,
    h2,
    h3,
    h4,
    h5,
    h6,
    a {
        padding: 0px;
        margin: 0px;
    }
    
    .login {
        display: none;
        width: 512px;
        height: 280px;
        position: fixed;
        border: #ebebeb solid 1px;
        left: 50%;
        top: 50%;
        background: #ffffff;
        box-shadow: 0px 0px 20px #ddd;
        z-index: 9999;
        transform: translate(-50%, -50%);
    }
    
    .login-title {
        width: 100%;
        margin: 10px 0px 0px 0px;
        text-align: center;
        line-height: 40px;
        height: 40px;
        font-size: 18px;
        position: relative;
        cursor: move;
    }
    
    .login-input-content {
        margin-top: 20px;
    }
    
    .login-button {
        width: 50%;
        margin: 30px auto 0px auto;
        line-height: 40px;
        font-size: 14px;
        border: #ebebeb 1px solid;
        text-align: center;
    }
    
    .login-bg {
        display: none;
        width: 100%;
        height: 100%;
        position: fixed;
        top: 0px;
        left: 0px;
        background: rgba(0, 0, 0, .3);
    }
    
    a {
        text-decoration: none;
        color: #000000;
    }
    
    .login-button a {
        display: block;
    }
    
    .login-input input.list-input {
        float: left;
        line-height: 35px;
        height: 35px;
        width: 350px;
        border: #ebebeb 1px solid;
        text-indent: 5px;
    }
    
    .login-input {
        overflow: hidden;
        margin: 0px 0px 20px 0px;
    }
    
    .login-input label {
        float: left;
        width: 90px;
        padding-right: 10px;
        text-align: right;
        line-height: 35px;
        height: 35px;
        font-size: 14px;
    }
    
    .login-title span {
        position: absolute;
        font-size: 12px;
        right: -20px;
        top: -30px;
        background: #ffffff;
        border: #ebebeb solid 1px;
        width: 40px;
        height: 40px;
        border-radius: 20px;
    }
</style>
</head>

<body>
    <div class="login-header"><a id="link" href="javascript:;">点击，弹出登录框</a></div>
    <div id="login" class="login">
        <div id="title" class="login-title">登录会员
            <span><a id="closeBtn" href="javascript:void(0);" class="close-login">关闭</a></span>
        </div>
        <div class="login-input-content">
            <div class="login-input">
                <label>用户名：</label>
                <input type="text" placeholder="请输入用户名" name="info[username]" id="username" class="list-input">
            </div>
            <div class="login-input">
                <label>登录密码：</label>
                <input type="password" placeholder="请输入登录密码" name="info[password]" id="password" class="list-input">
            </div>
        </div>
        <div id="loginBtn" class="login-button"><a href="javascript:void(0);" id="login-button-submit">登录会员</a></div>
    </div>
    <!-- 遮盖层 -->
    <div id="bg" class="login-bg"></div>
    <script src="js/public.js"></script>
    <script>
        var link = $('#link')
        var login = $('#login')
        var mask = $('#bg')
        var closeBtn = $('#closeBtn')
        var title = $('#title');
        link.addEventListener('click', function() {
            mask.style.display = 'block'
            login.style.display = 'block'
        })
        closeBtn.addEventListener('click', function() {
            mask.style.display = 'none'
            login.style.display = 'none'
        })
        title.addEventListener('mousedown', function(e) {
            var x = e.pageX - login.offsetLeft
            var y = e.pageY - login.offsetTop
            document.addEventListener('mousemove', move)

            function move(e) {
                login.style.left = e.pageX - x + 'px'
                login.style.top = e.pageX - y + 'px'

            }
            document.addEventListener('mouseup', function() {
                document.removeEventListener('mousemove', move)
            })
        })
    </script>
</body>

</html>